onSort: function (oEvent) {
			oEvent.preventDefault();
			var oColumn = oEvent.getParameter("column");
			var sOrder = oEvent.getParameter("sortOrder");
			var sortedRows = []; // Sortowanie rosnąco
			var nColumnIndex = Number(oColumn.getIndex());
			var bIsSorted = TableOperations._checkIfSorted(DataManager._oScheduleData.ColumnSet, nColumnIndex);

			if (bIsSorted) {
				if (sOrder === sap.ui.table.SortOrder.Ascending) {

					sortedRows = DataManager._oScheduleData.RowSet.sort(function (oObject1, oObject2) {
						if (oObject1.AssociationRow.results[nColumnIndex].text < oObject2.AssociationRow.results[nColumnIndex].text) {
							return -1;
						}

						if (oObject1.AssociationRow.results[nColumnIndex].text > oObject2.AssociationRow.results[nColumnIndex].text) {
							return 1;
						} else {
							return 0;
						}
					});
				}
				// sortowanie malejaco
				else {
					sortedRows = DataManager._oScheduleData.RowSet.sort(function (oObject1, oObject2) {
						if (oObject1.AssociationRow.results[nColumnIndex].text < oObject2.AssociationRow.results[nColumnIndex].text) {
							return 1;
						}

						if (oObject1.AssociationRow.results[nColumnIndex].text > oObject2.AssociationRow.results[nColumnIndex].text) {
							return -1;
						} else {
							return 0;
						}
					});
				}
			}
			DataManager._oScheduleData.RowSet = sortedRows;
			this._refreshJSONBindings();
		},